chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 171872977 171872978 C T 28 GENIC heterozygous 924776556 1 171876690 171876691 C T 21 GENIC heterozygous 924776557 1 171881290 171881291 A G 33 GENIC heterozygous 924776558